11547775325 has 12 divisors (see below), whose sum is σ = 14320580820. Its totient is φ = 9237356160.

The previous prime is 11547775303. The next prime is 11547775357. The reversal of 11547775325 is 52357774511.

It can be written as a sum of positive squares in 6 ways, for example, as 4619377156 + 6928398169 = 67966^2 + 83237^2 .

It is not a de Polignac number, because 11547775325 - 2⁸ = 11547775069 is a prime.

It is a super-2 number, since 2×11547775325² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11547775325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473531 + ... + 497319.

It is an arithmetic number, because the mean of its divisors is an integer number (1193381735).

Almost surely, 2^11547775325 is an apocalyptic number.

It is an amenable number.

11547775325 is a deficient number, since it is larger than the sum of its proper divisors (2772805495).

11547775325 is a wasteful number, since it uses less digits than its factorization.

11547775325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43216 (or 43211 counting only the distinct ones).

The product of its digits is 1029000, while the sum is 47.

The spelling of 11547775325 in words is "eleven billion, five hundred forty-seven million, seven hundred seventy-five thousand, three hundred twenty-five".